Phase Separation of Binary Self-Assembled Thiol Monolayers of 2-Mercaptoethanesulfonic Acid and 1-Octadecanethiol on Au(111)

Daisuke HOBARA; Kazuhiro UEDA; Shin-ichiro IMABAYASHI; Masahiro YAMAMOTO; Takashi KAKIUCHI

doi:10.5796/electrochemistry.67.1218

Communications

Phase Separation of Binary Self-Assembled Thiol Monolayers of 2-Mercaptoethanesulfonic Acid and 1-Octadecanethiol on Au(111)

Daisuke HOBARA, Kazuhiro UEDA, Shin-ichiro IMABAYASHI, Masahiro YAMAMOTO, Takashi KAKIUCHI

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Keywords: Self-assembled Monolayer, Thiol, Phase Separation, Atomic Force Microscopy

JOURNAL FREE ACCESS

1999 Volume 67 Issue 12 Pages 1218-1220

DOI https://doi.org/10.5796/electrochemistry.67.1218

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Abstract

Phase-separated binary self-assembled thiol monolayers of 2-mercaptoethanesulfonic acid and 1-octadecanethiol have been studied by cyclic voltammetry and scanning probe microscopy. Cyclic voltammograms for the reductive desorption of the binary self-assembled monolayers show a high degree of phase separation of the monolayers. The presence of two different types of domains caused by phase separation is imaged by atomic force microscopy.

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